This project is a TEMPLATE. It is designed to be FORKED. If you plan to use the Seeed Fusion PCB Service to manufacture (and maybe assemble) your 2-Layer PCB, this project has been pre-configured with the required PCB specifications including design rules. See the links to the Seeed Fusion 2-Layer specification page for details. 

Go to the project ATTACHMENTS section to download the Design Rules Report in PDF format.

This template project and design rule set is provided AS IS and WITHOUT WARRANTY, IMPLIED OR EXPLICIT. Use at your own risk.

Having said that, the DRC file was taken from Seeed Studio directly.